Sam Whittle created BEAM-12127:
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Summary: Reduce counter overhead in
PCollectionConsumerRegistry.accept
Key: BEAM-12127
URL: https://issues.apache.org/jira/browse/BEAM-12127
Project: Beam
Issue Type: Bug
Components: java-fn-execution
Reporter: Sam Whittle
Assignee: Sam Whittle
DelegatingCounter.inc shows up as 21% of cpu on nexmark query 2 benchmark under
PCollectionConsumerRegistry.accept
2% is actual counter incrementing, but the majority is the delegation of
DelegatingCounter which involves looking up thread-local state and then getting
the counter for the name from the counter container. However in this case the
counter container is known and can just be bound when constructing the counter
instaed of using DelegatingCounter.
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